D31 master the day

What is the measurement unit for D.P.C. provided in 2.5 cm thick cement concrete?

• Cubic meter
• Running meter
• Square meter
• Number

Answer explanation

D.P.C. of uniform thickness (e.g., 2.5 cm) is measured in square meters (m²).

Which part of arch masonry deduction is measured as solid volume?

• Above the springing line
• Below the springing line
• Crown area
• Keystone

Answer explanation

The segmental portion of the arch above the springing line is considered solid in deduction.

Which unit is used for plastering work on walls and ceilings?

• Cubic meter
• Running meter
• Square meter
• Number

Answer explanation

Plastering is measured in square meters (m²) as it covers surface area.

For masonry openings up to 0.1 m², what is the deduction rule?

• Deducted fully
• Deducted only from one face
• No deduction made
• Deducted from both faces

Answer explanation

Openings up to 0.1 m² in masonry are not deducted from the measurement.

In estimation, what unit is used for half-brick partition walls?

• Running meter
• Square meter
• Cubic meter
• Piece

Answer explanation

Half-brick partition walls are measured in square meters due to their limited thickness.

Which of the following items is measured in running meter?

• Cornice
• Roof slab
• Brick masonry
• Lime concrete

Answer explanation

Items like cornices and string courses are linear and measured in running meters.

The typical reinforcement percentage in RCC volume is:

• 0.5–1%
• 0.6–1%
• 1–1.5%
• 2–2.5%

Answer explanation

Steel reinforcement typically accounts for 0.6–1% of RCC volume.

The deduction formula for segmental arch opening includes:

• l × h only
• l × h + 2/3 × l × r × t
• π × r² × t
• l × r × h

Answer explanation

Segmental arch deduction includes l × h + (2/3 × l × r × thickness).

What is the measurement unit for painting rolling shutters?

• Running meter
• Square meter
• Cubic meter
• Per shutter

Answer explanation

Rolling shutters are painted and measured in square meters.

How is centering and shuttering for RCC work measured?

• Cubic meter
• Square meter
• Running meter
• Lump sum

Answer explanation

Centering and shuttering are measured in square meters of contact area.